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1.
Chinese Medical Journal ; (24): 2081-2090, 2021.
Article in English | WPRIM | ID: wpr-887596

ABSTRACT

BACKGROUND@#High-frequency irreversible electroporation (H-FIRE) is a novel, next-generation nanoknife technology with the advantage of relieving irreversible electroporation (IRE)-induced muscle contractions. However, the difference between IRE and H-FIRE with distinct ablation parameters was not clearly defined. This study aimed to compare the efficacy of the two treatments in vivo.@*METHODS@#Ten Bama miniature swine were divided into two group: five in the 1-day group and five in the 7-day group. The efficacy of IRE and H-FIRE ablation was compared by volume transfer constant (Krans), rate constant (Kep) and extravascular extracellular volume fraction (Ve) value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), size of the ablation zone, and histologic analysis. Each animal underwent the IRE and H-FIRE. Temperatures of the electrodes were measured during ablation. DCE-MRI images were obtained 1, 4, and 7 days after ablation in the 7-day group. All animals in the two groups were euthanized 1 day or 7 days after ablation, and subsequently, IRE and H-FIRE treated liver tissues were collected for histological examination. Student's t test or Mann-Whitney U test was applied for comparing any two groups. One-way analysis of variance (ANOVA) test and Welch's ANOVA test followed by Holm-Sidak's multiple comparisons test, one-way ANOVA with repeated measures followed by Bonferroni test, or Kruskal-Wallis H test followed by Dunn's multiple comparison test was used for multiple group comparisons and post hoc analyses. Pearson correlation coefficient test was conducted to analyze the relationship between two variables.@*RESULTS@#Higher Ve was seen in IRE zone than in H-FIRE zone (0.14 ± 0.02 vs. 0.08 ± 0.05, t = 2.408, P = 0.043) on day 4, but no significant difference was seen in Ktrans or Kep between IRE and H-FIRE zones at all time points (all P > 0.05). For IRE zone, the greatest Ktrans was seen on day 7, which was significantly higher than that on day 1 (P = 0.033). The ablation zone size of H-FIRE was significantly larger than IRE 1 day (4.74 ± 0.88 cm2vs. 3.20 ± 0.77 cm2, t = 3.241, P = 0.009) and 4 days (2.22 ± 0.83 cm2vs. 1.30 ± 0.50 cm2, t = 2.343, P = 0.041) after treatment. Apoptotic index (0.05 ± 0.02 vs. 0.73 ± 0.06 vs. 0.68 ± 0.07, F = 241.300, P  0.05). Electrode temperature variations were not significantly different between the two zones (18.00 ± 3.77°C vs. 16.20 ± 7.45°C, t = 0.682, P = 0.504). The Ktrans value (r = 0.940, P = 0.017) and the Kep value (r = 0.895, P = 0.040) of the H-FIRE zone were positively correlated with the number of hepatocytes in the ablation zone.@*CONCLUSIONS@#H-FIRE showed a comparable ablation effect to IRE. DCE-MRI has the potential to monitor the changes of H-FIRE ablation zone.


Subject(s)
Animals , Contrast Media , Electroporation , Follow-Up Studies , Liver/surgery , Magnetic Resonance Imaging , Swine
2.
Article in Chinese | WPRIM | ID: wpr-862666

ABSTRACT

Objective::To observe the clinical efficacy of flavored Sanxitang combined with celecoxib in treating gonarthromeningitis caused by dampness and cold. Method::Totally 120 case were randomly divided into the control group and the treatment group, with 60 cases in each group. The control group was given celecoxib, and the treatment group was treated with flavored sanxitang combined with celecoxib for 30 d. The visual analogue scale (VAS), American knee association knee function scale (AKS), arthritis impact scale (AIMS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) were observed before and after treatment. The circumferential diameter, articular cavity effusion and synovial hyperplasia thickness were measured. The serum tumor necrosis factor-α(TNF-α), matrix metalloproteinase (MMP)-3, serum interleukin-1 (IL-1) and erythrocyte sedimentation rate (ESR) were detected. The effective rate and adverse reactions were observed in two groups. Result::The total effective rate in treatment group was 94.8% (55/58), which was higher than 80.7% (46/57) in control group (P<0.05). Compared with before treatment, VAS, AIMS, WOMAC, knee circumference, articular cavity effusion and synovial hyperplasia thickness were significantly reduced in two groups (P<0.05), while the AKS score was significantly increased (P<0.05). Compared with after treatment, VAS, AIMS, WOMAC, knee circumference, articular cavity effusion and synovial hyperplasia thickness were significantly reduced in observation group (P<0.05), whereas the AKS score was significantly increased (P<0.05). TNF-α, MMP-3, IL-1 and ESR in two groups were significantly lower than those group before treatment (P<0.05). After treatment, TNF-α, MMP-3, IL-1 and ESR levels in observation group were significantly reduced compared with those in control group (P<0.05). The incidence rate of adverse reactions in treatment group was 5.89% (4/58), which was lower than 22.81% (13/57) in control group (P<0.05). Conclusion::Flavored Sanxitang combined with celecoxib could alleviate the clinical symptoms of gonarthromeningitis caused by dampness and cold, with a low incidence of adverse reactions.

3.
Article in Chinese | WPRIM | ID: wpr-873061

ABSTRACT

Objective:To explore the clinical efficacy of modified Guiling Ganluyin combined with colchicine in treatment of gouty arthritis(GA) damp-heat accumulation. Method:A total of 210 cases of GA were randomly divided into traditional Chinese medicine(TCM) group(70 cases), western medicine group (70 cases), and integrated traditional Chinese and western medicine group(70 cases) according to the digital table method. The patients in TCM group were treated with modified Guiling Ganluyin, the patients in western medicine group were treated with colchicine, and the patients in integrated traditional Chinese and western medicine group received modified Guiling Ganluyin + colchicine, with a treatment course of 30 d in all groups. The clinical symptoms before and after the treatment [joint pain visual analogue scale(VAS), patient global appraise(PGA), number rating scale for pain(NRS)], inflammatory cytokines in serum and joint fluid [tumor necrosis factor-alpha(TNF-α), interleukin-1β(IL-1β), uric acid(UA)], hemorheology index [whole blood high cut viscosity(HCV), whole blood low cut viscosity(LCV), whole blood reductive viscosity(RV)]in 3 groups were observed. The total effective rate and the adverse reactions were compared. Result:Six cases fell off during the study period. The total effective rate in integrated traditional Chinese and western medicine group was 97.1%(67/69), which higher than 80.8%(55/68) in TCM group (χ2=8.153, P<0.05) and 79.1%(53/67) in western medicine group (χ2=8.735, P<0.05). Compared with TCM group and western medicine group, the clinical symptoms VAS and NRS scores in integrated traditional Chinese and western medicine group were significantly lower(P<0.05), while the PGA scores were significantly higher(P<0.05). TNF-α, IL-1β and UA in serum and articular fluid in integrated traditional Chinese and western medicine group were significantly decreased(P<0.05). HCV, LCV and RV were significantly decreased in integrated traditional Chinese and western medicine group(P<0.05). Compared with the traditional Chinese and western medicine group, the incidence of adverse reactions was higher in the western medicine group (χ2=5.538,P<0.05) and lower in the Chinese medicine group (χ2=6.273,P<0.05). Conclusion:Modified Guiling Ganluyin combined with colchicine has the effects in enhancing effect and reducing toxicity, and could improve the clinical symptoms of GA patients with damp-heat accumulation, with a low incidence of adverse reactions.

4.
Herald of Medicine ; (12): 173-176, 2019.
Article in Chinese | WPRIM | ID: wpr-744209

ABSTRACT

Objective To investigate the effects of disulfiram combined with copper (DSF /Cu) on proliferation and migration of brain metastases from lung cancer. Methods The cell were divided into blank control group, valproate group (1.0 mmol·L-1 of valproate) , DSF /Cu (1,2,3,4,5 mg /0.17 mg) . Brain metastases from lung adenocarcinoma were incubated 72 hours.The changes of proliferative ability of cancer cells were detected by CCK-8 method, the effect of DSF /Cu on the migration ability of cancer cells was detected by Transwell chamber, and the degree of apoptosis of cancer cells was detected by Annexus V-PI double staining method. Results The ability of proliferation was significantly inhibited, the ability of migration was significantly reduced,and the rate of cell apoptosis was significantly increased in each dose group of brain metastases from lung adenocarcinoma compared with the blank control group. With the increase of DSF /Cu dose, its ability to inhibit the proliferation and migration of metastases cancer cells and induce apoptosis of metastases cancer cells has increased gradually. Conclusion DSF /Cu can inhibit the proliferation and migration of brain metastases from lung adenocarcinoma and induce apoptosis. DSF is expected to be a new method of the combined treatment of brain metastases cancer.

5.
Article in Chinese | WPRIM | ID: wpr-801702

ABSTRACT

Objective: To explore the clinical efficacy and safety of modified Huqianwan in treatment of rheumatoid arthritis (RA) liver-kidney Yin deficiency syndrome, and investigate its possible mechanism. Method: A total of 184 patients with RA liver-kidney Yin deficiency syndrome were randomly divided into Chinese medicine group (62 cases), western medicine group (57 cases) and integrated Chinese and western medicine group (65 cases) according to the digital table method. The patients in Chinese medicine group were treated with Huqianwan; the patients in western medicine group were treated with methotrexate tablets and leflunomide tablets; and the patients in integrated Chinese and western medicine group received Huqianwan+methotrexate tablets and leflunomide tablets,with a treatment course of 12 weeks in all groups. The pain visual analog scale (VAS), swelling and tenderness scores of 28 joints (DAS28), average hands grip strength, morning stiffness time and liver-kidney Yin deficiency syndrome differentiation of traditional Chinese medicine (TCM) syndrome score were compared between groups before and after treatment. The changes of erythrocyte sedimentation rate (ESR), C reactive protein (CRP), immunoglobulin (Ig) G, tumor necrosis factor-alpha (TNF-α) and rheumatoid factor (RF) were detected in all groups after treatment. Clinical efficacy, and incidence of adverse reactions such as gastrointestinal response, liver injury, leukopenia, serum glutamate oxaloacetic aminotransferase (GOT) and platelet (PLT) level changes were compared between the groups, so as to investigate the efficiency and safety of the different medicines. Result: After 12 weeks of treatment, the total clinical effective rate was 79.0%, 80.7%, and 92.3% respectively in Chinese medicine group, western medicine group, and integrated Chinese and western medicine group; the integrated Chinese and western medicine group was significantly better than the Chinese medicine group and western medicine group (PPPPConclusion: The efficacy in treating RA liver and kidney Yin deficiency syndrome shows no significant difference between modified Huqianwan and methotrexate tablets+leflunomide tablets. In the treatment of RA liver and kidney Yin deficiency syndrome, Huqianwan has fewer adverse reactions. Huqianwan combined with methotrexate tablets+leflunomide tablets is superior to that in methotrexate tablets+leflunomide tablets in treatment of RA liver-kidney Yin deficiency syndrome.

6.
Article in Chinese | WPRIM | ID: wpr-816567

ABSTRACT

Tubal pregnancy is common and is in lackof detailed clinical research.It seems to be simple todiagnose and easy to handle,but once it is ignored,itcan lead to serious consequences and even death.Withthe changes in today′s social environment and people′sconcept,and with the widespread use of IVF and othertechnologies,new cases have emerged in tubal preg-nancy.We should re-emphasize the diagnosis andtreatment of tubal pregnancy.

7.
Article in Chinese | WPRIM | ID: wpr-695573

ABSTRACT

Objective To explore the relationship between different blood glucose levels and prognosis in patients with acute severe craniocerebral injury.Methods Clinical data of 120 patients with acute severe craniocerebral injury from Jun.2014 to Jun.2017 in Department of Neurosurgery,Tongren Hospital of Wuhan University were analyzed retrospectively.The patients were divided into the group of acute severe craniocerebral injury and the group of acute extra-severe craniocerebral injury according to the Glasgow coma score (GCS).Blood glucose levels were detected at the time of admission,the 1st day,the 3rd day,the 7th day and the 14th day after operation.According to the blood glucose levels on admission,the patients were divided into the normal blood glucose group,the blood glucose value of 6.1-10.0 mmol/L group,the blood glucose value > 10.0 mmol/L group.The prognosis was evaluated by Glasgow Outcome Score (GOS) 3 months after discharge.The relationship between the blood glucose levels and GOS score in different groups was analyzed.Results The blood glucose levels in the group of acute extra-severe craniocerebral injury were higher than those in the group of acute severe craniocerebral injury,and the difference was statistically significant (P<0.05).Of the patients with acute severe craniocerebral injury,54 had good prognosis,and 16 had poor prognosis.Of the patients with acute extra-severe craniocerebral injury,28 had good prognosis,and 22 had poor prognosis.The rate of good prognosis were 77.1% and 56% respectively,and the difference had statistical significance (P=0.014,x2=6.025).The good prognosis of patients with normal blood glucose group was 23 and the poor prognosis was 4,with a good prognosis rate of 85.2% (23/27).Among patients with blood glucose of 6.1-10.0 mmol/L,30 had good prognosis and 8 had poor prognosis,with a good prognosis rate of 78.9%(30/38).Among patients with blood glucose >10.0 mmol/L,31 had good prognosis and 24 had poor prognosis,with a good prognosis rate of 56.4% (31/55).With the increase of blood glucose,the good prognosis rate gradually decreased and the poor prognosis rate gradually increased,and the difference was statistically significant(P=0.010,x2=9.283).Conclusion Blood glucose level has influence on the prognosis of patients with acute severe craniocerebral injury,and the good prognosis of patients with acute severe craniocerebral injury is severely affected by hyperglycemia.

8.
Chinese Circulation Journal ; (12): 495-498, 2016.
Article in Chinese | WPRIM | ID: wpr-489983

ABSTRACT

Objective: To establish the aortic regurgitation model in Chinese miniature pigs under echocardiography guidance. Methods: The animal models were established by following steps: general anesthesia, measuring body weight and then receiving echocardiography examination to exclude aortic valve lesions; carotid artery was exposured by surgery, catheter was sent to aortic sinus with stiff guide wire penetrates and the position of catheter was adjusted to obtain aortic valve damage. The aortic valve injury and regurgitation were evaluated by ultrasound; then the pigs were killed and the heart was taken to observe aortic valve damage. Results: A total of 7 pigs were used including 4 male and 3 female with the mean body weight of (24.7 ± 3.6) kg. Aortic regurgitation model was successfully established in 5 pigs including 1 mild, 1 mild-moderate, 2 moderate, 1 severe aortic valve regurgitation, and 4 were with valve lealfets perforation and 1 with lealfets tearing. Conclusion:①Echocardiography can smoothly guide wire go through aortic valve and make valve damage at different degrees, it is reliable to establish aortic valve regurgitation model in experimental pigs.②Echocardiography may clearly identify the position and degree for aortic valve injury.

9.
Article in Chinese | WPRIM | ID: wpr-286886

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effect of docosahexaenoic acid (DHA) on apoptosis, migration and invasion of cervical cancer cell lines.</p><p><b>METHODS</b>cervical cancer cell lines Hela and Siha in logarithmic phase were treated different concentrations of DHA. The morphological changes of the cells were observed microscopically and cell apoptosis was observed using Hoechst 33258 fluorescent staining. MTT assay was used to evaluate the effect of DHA in suppressing cell growth, and flow cytometry was employed to analyze the changes of cell apoptotic rate following DHA stimulations. Wound healing assay and Transwell migration assay were used to evaluate the migration of the cell lines. The expression levels of Bax, Bcl-2 cleaved caspase3, MMP-9 and VEGF proteins were detected by Western blotting.</p><p><b>RESULTS</b>DHA exposure of the cells caused obvious morphological changes and dose-dependently increased the number of apoptotic bodies in the cells. MTT assay showed that DHA inhibited the growth of the cancer cells in a time- and concentration-dependent manner. DHA also effectively suppressed migration and invasion of the cancer cells. The cells exposed to DHA showed significantly down-regulation of Bcl-2, MMP-9 and VEGF proteins and up-regulation of cleaved-caspase 3 and Bax.</p><p><b>CONCLUSION</b>DHA can promote cervical carcinoma cell apoptosis by down-regulating the anti-apoptotic proteins Bax, Bcl-2 and cleaved-caspase3 and suppress cell invasion by decreasing MMP-9 and VEGF expressions.</p>


Subject(s)
Apoptosis , Caspase 3 , Metabolism , Cell Cycle , Cell Line, Tumor , Cell Movement , Cell Proliferation , Docosahexaenoic Acids , Pharmacology , Down-Regulation , Female , HeLa Cells , Humans , Matrix Metalloproteinase 9 , Metabolism , Neoplasm Invasiveness , Proto-Oncogene Proteins c-bcl-2 , Metabolism , Up-Regulation , Uterine Cervical Neoplasms , Pathology , Vascular Endothelial Growth Factor A , Metabolism , bcl-2-Associated X Protein , Metabolism
10.
Article in English | WPRIM | ID: wpr-812156

ABSTRACT

The polysaccharides from pumpkin fruit (PP) were obtained and purified by hot-water extraction, anion-exchange chromatography, and gel column chromatography. The physicochemical properties of PP were determined by gel filtration chromatography, gas chromatography, fourier transform infrared (FTIR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy. Results indicated that the molecular weight of PP was about 23 kDa and PP was composed of D-Arabinose, D-Mannose, D-Glucose, and D-Galactose with a molar ratio of 1 : 7.79 : 70.32 : 7.05. FTIR and NMR spectra indicated that PP was the polysaccharide containing pyranose ring. Additionally, PP protected islets cells from streptozotocin (STZ) injury in vitro via increasing the levels of super-oxide dismutase (SOD) and malondialdehyde (MDA) and reducing the production of NO. The experiment of reverse transcriptase-polymerase chain reaction further proved that PP inhibited apoptosis via modulating the expression of Bax/Bcl-2 in STZ-damaged islet cells. In conclusion, PP could be explored as a novel agent for the treatment of diabetes mellitus.


Subject(s)
Animals , Apoptosis , Chromatography, Gas , Chromatography, Gel , Cucurbita , Chemistry , Diabetes Mellitus, Experimental , Drug Therapy , Islets of Langerhans , Wounds and Injuries , Magnetic Resonance Spectroscopy , Malondialdehyde , Molecular Weight , Monosaccharides , Nitric Oxide , Polysaccharides , Chemistry , Pharmacology , Rats , Rats, Sprague-Dawley , Reverse Transcriptase Polymerase Chain Reaction , Spectroscopy, Fourier Transform Infrared , Superoxide Dismutase , bcl-2-Associated X Protein
11.
Chinese Medical Journal ; (24): 909-913, 2015.
Article in English | WPRIM | ID: wpr-350379

ABSTRACT

<p><b>BACKGROUND</b>The aim of this study is to explore the treatment and outcome of epileptogenic temporal lobe cavernous malformations (CMs).</p><p><b>METHODS</b>We analyzed retrospectively the profiles of 52 patients diagnosed as temporal lobe CMs associated with epilepsy. Among the 52 cases, 11 underwent a direct resection of CM along with the adjacent zone of hemosiderin rim without electrocorticogram (ECoG) monitoring while the other 41 cases had operations under the guidance of ECoG. Forty-six patients were treated by lesionectomy + hemosiderin rim while the other six were treated by lesionectomy + hemosiderin rim along with extended epileptogenic zone resection. The locations of lesions, the duration of illness, the manifestation, the excision ranges and the outcomes of postoperative follow-up were analyzed, respectively.</p><p><b>RESULTS</b>All of the 52 patients were treated by microsurgery. There was no neurological deficit through the long-term follow-up. Outcomes of seizure control are as follows: 42 patients (80.8%) belong to Engel Class I, 5 patients (9.6%) belong to Engel Class II, 3 patients (5.8%) belong to Engel Class III and 2 patients (3.8%) belong to Engel Class IV.</p><p><b>CONCLUSION</b>Patients with epilepsy caused by temporal CMs should be treated as early as possible. Resection of the lesion and the surrounding hemosiderin zone is necessary. Moreover, an extended excision of epileptogenic cortex or cerebral lobes is needed to achieve a better prognosis if the ECoG indicates the existence of an extra epilepsy onset origin outside the lesion itself.</p>


Subject(s)
Adolescent , Adult , Child , Electroencephalography , Epilepsy , General Surgery , Female , Hemangioma, Cavernous, Central Nervous System , General Surgery , Humans , Male , Middle Aged , Retrospective Studies , Temporal Lobe , Pathology , General Surgery , Treatment Outcome , Young Adult
12.
Article in English | WPRIM | ID: wpr-270590

ABSTRACT

This study aimed to determine the in vitro activity of quinupristin-alfopristin against Streptococcus sp. isolated in China. This agent is not yet available for clinical use, but it has been tested against a high proportion of resistant Staphylococcus aureus strains. A total of 156 streptococcal isolates, which were recovered from various geographic areas and diseases, were tested using the Etest (AB Biodisk, Solna, Sweden). Quinupristin-alfopristin showed excellent activity against all of the tested streptococci isolates. These results provide useful data for the clinical use of quinupristin-alfopristin in China.


Subject(s)
Anti-Bacterial Agents , Pharmacology , China , Microbial Sensitivity Tests , Streptococcus , Virginiamycin , Pharmacology
13.
International Eye Science ; (12): 1844-1846, 2014.
Article in Chinese | WPRIM | ID: wpr-642056

ABSTRACT

AIM: To discuss the effect of wearing customized curvature soft corneal contact lens to dry eye degree of flight attendants. METHODS:Eighty cases (160 eyes) of flight attendants from China Southern were divided into two groups:control group 40 cases ( 80 eyes ) wearing ready-made Bausch soft corneal contact lens ( curvature 8. 4 ); the experiment group 40 cases ( 80 eyes ) , wearing Bausch soft corneal contact lens with customized curvature. Tear break-up time ( BUT ) , Schirmer Ⅰ test ( SⅠt ) and fluorescein ( FL ) staining were as dry eye evaluation index. The results was statistically analyzed. RESULTS: BUT, SⅠt average shortening value of the experimental group were less than that of the control group, there was statistical significance (PCONCLUSION: Wearing customized curvature soft corneal contact lens can prevent the flight dry eye more effectively than fixed curvature product.

14.
Article in English | WPRIM | ID: wpr-320370

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the protein expression profiles of the major food-borne pathogen Campylobacter jejuni NCTC11168.</p><p><b>METHODS</b>Membrane and soluble cellular proteins were extracted from the genome-sequenced C. jejuni strain NCTC11168. Protein expression profiles were determined using two-dimensional gel electrophoresis (2-DE). All the detected spots on the 2-DE map were subjected to matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/TOF) analysis.</p><p><b>RESULTS</b>A total of 537 and 333 spots were detected from the whole cell and membrane-associated proteins of C. jejuni NCTC11168 cultured on Columbia agar medium at 42 °C by 2-DE and Coomassie Brilliant Blue staining, respectively. Analyses of whole cell and membrane-associated proteins included 399 and 133 spots, respectively, which included 182 and 53 functional proteins identified by MALDI-TOF/TOF analysis.</p><p><b>CONCLUSION</b>The comprehensive expression protein profiles of C. jeuni NCTC11168 obtained in this study will be useful for elucidating the roles of these proteins in further pathogenesis investigation.</p>


Subject(s)
Bacterial Proteins , Genetics , Metabolism , Campylobacter jejuni , Classification , Genetics , Metabolism , Electrophoresis, Gel, Two-Dimensional , Methods , Gene Expression Regulation, Bacterial , Physiology , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Methods , Transcriptome
15.
Article in English | WPRIM | ID: wpr-320390

ABSTRACT

<p><b>OBJECTIVE</b>Secreted proteins of Helicobacter pylori (H. pylori) interact with gastric epithelium cells and may contribute to cell damage. Considering the fact that HP0175 and hypothetical conserved protein HP1286 are included in the group and that HP0175 is a well-known apoptosis-induced factor, the present study aims to clarify whether HP1286 plays a role in bacterial pathogenicity or even functions as an apoptosis-induced factor in human stomach.</p><p><b>METHODS</b>Two genes encoding HP1286 and HP0175 were cloned into pET32a vector and expressed as recombinant proteins in Escherichia coli (E. coli) BL21. Signal peptide sequences were not included. The recombinant proteins were purified with His SpinTrap and desalted by using HiTrap Desalting. Immunoreactivity of the proteins was determined by Western blot. Human gastric epithelial cell AGS was challenged with these endotoxin-free proteins; and apoptosis of cells was assayed with the Cell Death ELISA kit.</p><p><b>RESULTS</b>Recombinant proteins and their respective products whose N-terminal his-tag were removed with thrombin were recognized by serum from the patient infected with H. pylori. Apoptotic AGS cells challenged by HP1286 of H. pylori 26695 were four times more than untreated cells. In addition, apoptosis-induced ability of HP1286 of SS1 was not as strong as that of H. pylori 26695 strain.</p><p><b>CONCLUSION</b>HP1286 of H. pylori 26695 induces apoptosis of AGS cells in a time-dependent manner, however the apoptosis-induced ability of HP1286 may differ due to variations between different strains.</p>


Subject(s)
Amino Acid Sequence , Apoptosis , Bacterial Proteins , Metabolism , Pharmacology , Cell Line, Tumor , Cloning, Molecular , Escherichia coli , Metabolism , Gene Expression Regulation, Bacterial , Genetic Variation , Helicobacter pylori , Classification , Genetics , Metabolism , Humans , Molecular Sequence Data , Recombinant Proteins , Stomach Neoplasms
16.
Chinese Journal of Cardiology ; (12): 1056-1061, 2012.
Article in Chinese | WPRIM | ID: wpr-292042

ABSTRACT

<p><b>OBJECTIVE</b>To observe the effects of interleukin-8 monoclonal antibody on smooth muscle cell proliferation and balloon inflation-induced abdominal aorta stenosis in rabbits.</p><p><b>METHODS</b>Thirty-six New Zealand white rabbits were randomly assigned to balloon inflation group (group A, n = 12), interleukin-8 monoclonal antibody pre-treated rabbits (2 mg/kg for 3 days before balloon inflation, group B, n = 12) and sham-operated control group (group C, n = 12). Peripheral blood was collected before experiment and at 4 h, 1, 3, 7, 14, and 28 days post balloon inflation or sham operation and the levels of IL-8 were measured by enzyme linked immunosorbent assay (ELISA). The ratio of positive and negative masculine cells in the high power microscopic field was determined in proliferating cell nuclear antigen (PCNA) stained slide. Histopathologic examination was performed in abdominal aorta and luminal area, intima and tunica media area were measured.</p><p><b>RESULTS</b>Plasma interleukin-8 began to rise at 4 h and peaked at 1 day and remained increased up to 28 days after balloon inflation in rabbits of group A, plasma interleukin-8 level in group A was significantly higher than in group B and C at 4 h and thereafter post operation. The ratio of positive and negative masculine cells was significantly increased in group A compared to group C and was significantly lower in group B than in group A. Abdominal aorta stenosis, luminal area, intima and tunica media area were significantly reduced in group B than in group A. Correlation analysis indicated that there were positive relations between plasma IL-8 level and intima thickness, area of intima and tunica media, respectively (r = 0.894, 0.783, 0.801, 0.912, all P < 0.01).</p><p><b>CONCLUSIONS</b>Plasma IL-8 level is increased in this abdominal aorta stenosis model and is positively correlated to the severity of abdominal aorta stenosis. IL-8 monoclonal antibody could significantly reduce abdominal aorta stenosis in this abdominal aorta stenosis model.</p>


Subject(s)
Animals , Antibodies, Monoclonal , Pharmacology , Therapeutic Uses , Aorta, Abdominal , Pathology , Aortic Coarctation , Drug Therapy , Pathology , Cell Proliferation , Interleukin-8 , Allergy and Immunology , Muscle, Smooth, Vascular , Cell Biology , Myocytes, Smooth Muscle , Rabbits
17.
Article in English | WPRIM | ID: wpr-235568

ABSTRACT

<p><b>OBJECTIVE</b>To establish and evaluate a real-time PCR assay to detect Mycoplasma pneumoniae (M.pneumoniae) in clinical specimens.</p><p><b>METHODS</b>By analysing the whole p1 gene sequence of 60 M.pneumoniae clinical isolates in Beijing of China, an optimized real-time PCR assay (MpP1) using p1 gene conserved region was designed. The specificity and sensitivity of this assay were evaluated and compared with other two reported assays (RepMp1 and Mp181) using 40 positive and 100 negative clinical specimens.</p><p><b>RESULTS</b>The detection limit of the new assay was 8.1 fg (about 1∼3CFU) M.pneumoniae DNA. The sensitivity of MpP1, RepMp1, and Mp181 assays appeared to be 100%, 100%, and 85%, respectively.</p><p><b>CONCLUSION</b>MpP1 assay is suitable for the detection of M.pneumoniae in Chinese clinical specimens.</p>


Subject(s)
Genes, Bacterial , Humans , Mycoplasma pneumoniae , Genetics , Real-Time Polymerase Chain Reaction , Sensitivity and Specificity , Sequence Analysis, DNA
18.
Article in Chinese | WPRIM | ID: wpr-308671

ABSTRACT

<p><b>OBJECTIVE</b>To study the effect of Ganoderma lucidum polysaccharides on oxidative stress of hyperlipidemic fatty liver in rats.</p><p><b>METHOD</b>Seventy-two SD rats were randomly divided into six groups, namely the normal control group (NG), the model group (MG), the G. lucidum polysaccharides groups of low, middle and high dose (GLPs-LG, GLPs-MG, GLPs-HG) and the Simvastatin group (SV). The rats were fed with high fat diet to establish the model of hyperlipidemic fatty liver in rats. After administration for 12 weeks, rats in each group were tested with the following indexes: total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C) and low density lipoprotein-cholesterol (LDL-C), malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and total antioxidant capacity (T-AOC) in serum as well as the contents of SOD, MDA, GSH-Px and T-AOC in hepatic tissues. Histopathological changes of hepatic tissues were observed under light glass.</p><p><b>RESULTS</b>The contents of TC, TG and LDL-C were significantly increased in the model group (P < 0.01). Compared with the model group, both the GLPs-M group and the GLPs-H group showed significant decreases in TC, TG and LDL-C (P < 0.05 or P < 0.01), while the GLPs-H group showed a notable increase in HDL-C (P < 0.05). Compared with the model group, both the GLPs-M group and the GLPs-H group showed significant decreases in MDA (P < 0.05 or P < 0.01) and notable increases in SOD, GSH-Px, T-AOC (P < 0.05 or P < 0.01). The GLPs-M group and the GLPs-H group proved a remarkable alleviation in fatty degeneration of hepatic cells.</p><p><b>CONCLUSION</b>G. lucidum polysaccharides can significantly reduce the blood fat level of hyperlipidemic fatty liver in rats and effectively inhibit oxidant stress, showing the effect on preventing and treating hyperlipidemic fatty liver in rats to some extent.</p>


Subject(s)
Animals , Antioxidants , Metabolism , Disease Models, Animal , Drugs, Chinese Herbal , Fatty Liver , Drug Therapy , Metabolism , Glutathione Peroxidase , Metabolism , Humans , Male , Malondialdehyde , Blood , Oxidative Stress , Polysaccharides , Rats , Rats, Sprague-Dawley , Reishi , Chemistry , Triglycerides , Blood
19.
Article in Chinese | WPRIM | ID: wpr-247261

ABSTRACT

<p><b>OBJECTIVE</b>To assess the acceptability of pre-exposure prophylaxis (Pr-EP) among the female sex workers in Xinjiang.</p><p><b>METHODS</b>A volunteer-based, anonymous and one-to-one questionnaire survey was conducted in 762 female sex workers (FSW) in Urumqi and Kelamayi of Xinjiang Uyghur Autonomous Region.</p><p><b>RESULT</b>Among 762 FSW surveyed, 673 (88.32%) was not aware of pre-exposure prophylaxis with an awareness rate of 11.55%. The awareness rate of FSWs working in high-end entertainment venues was higher than that of FSWs working in medium-low end entertainment venues(P<0.001). Five hundred and twenty eight FSWs (69.29%) were willing to take Pr-EP, 145 (19.03%) were unwilling to take the medicine and 89 (11.68%) were possible to use the Pr-EP. There was no significant difference in willingness of using Pr-EP among FSWs working in high and medium-low end entertainment venuew (P=0.285). The subjects who were willing to take Pr-EP mainly concerned of the drug security, effectiveness and cost. The main reasons for not willing to take Pr-EP were: not having risk of infecting HIV, suspecting effectiveness of Pr-EP and worrying about side effects.</p><p><b>CONCLUSION</b>The acceptability to use Pr-EP in female sex workers of Xinjiang is relatively high and the drug security, effectiveness and cost will influence the promotion and application of Pr-EP in the future.</p>


Subject(s)
Adult , Chemoprevention , China , Female , HIV Infections , Health Knowledge, Attitudes, Practice , Humans , Patient Acceptance of Health Care , Sex Work , Surveys and Questionnaires , Young Adult
20.
Journal of China Medical University ; (12): 717-718,723, 2010.
Article in Chinese | WPRIM | ID: wpr-598250

ABSTRACT

Objective To establish a method to culture and isolate atrial myocardial cells of neonate rat. Methods The atrial myocardial tissue was digested by a low concentration of trypsin and eollagenase. Subsequently, the atrial myocardial cells were cultured and isolated with the technique of differential anchoring for twice. The purity of cardiocytes was detected by immunofluorescenee and the pulsation was observed under inverted biologicalmicroscope. Results After 72 hours of primary culture, the cells reached 70% confluence, and all the my- ocardial cells were jumping synchronously. Immunofluorescence showed that the purity of cardiocytes cultured was more than 90%. Conclu- sion Neonatal rat atrial myocytes were successfully cultured by enzyme digestion with high purity and vigor.

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